When was the world's first self-checkout system invented and installed in a retail store?

Self-checkout technology transformed retail operations worldwide, but do you know when this game-changing invention first appeared in stores? This innovation reduced waiting times, optimized staffing needs, and changed how consumers interact with retailers. While commonplace today, the journey from invention to widespread adoption reveals fascinating insights about retail technology evolution and consumer acceptance of automated shopping experiences.

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1992 by Howard Schneider, first installed at Price Chopper in New York
1987 by IBM, first installed at Walmart in Arkansas
2001 by NCR Corporation, first installed at Kroger in Ohio
1974 by David R. Humble after being inspired while waiting in a long grocery line